CBAK Energy Completes Product Upgrade, Launches New 40135 Battery Production Line with Strong Initial Orders

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DALIAN, China, Oct. 15, 2025 — CBAK Energy Technology, Inc. (NASDAQ: CBAT), a prominent Chinese manufacturer of lithium-ion and sodium-ion batteries and integrated electric energy solutions, announced today that its fully owned subsidiary, Dalian CBAK Power Battery Co., Ltd., has completed its product line upgrade and initiated operations on a new production line for its Model 40135 battery. This new model boasts a larger size and greater capacity compared to the Company’s current top-selling product, Model 32140.

Since 2025, Dalian CBAK has invested in establishing this new production line to upgrade from the Model 26650, initially developed in 2006. As part of this shift, Dalian CBAK’s major clients are currently evaluating, validating, and transitioning to the new Model 40135, which has temporarily affected sales performance during this period.

With the launch of the new production line, Dalian CBAK has reached an initial daily production capacity of approximately 20,000 cells. Within one month of operation, it has already delivered around 500,000 cells, generating approximately US$2 million in revenue. The Company anticipates production to increase to about 100,000 cells per day by the end of the year. Despite operating at limited capacity for only a month, Dalian CBAK has already secured orders for approximately 1.2 million cells pending delivery, representing an estimated US$5 million in revenue and highlighting the strong market demand for the new model.

“CBAK Energy’s product portfolio now includes small cylindrical cell models such as 26650/26700, and large cylindrical models including 32140/40135,” said Zhiguang Hu, CEO of CBAK Energy. “We remain committed to continuous R&D investment and to introducing new cell models that meet evolving market needs. The strong inflow of orders in just a month days has strengthened our confidence in the Model 40135, and we expect Dalian CBAK’s sales performance to reach new highs soon. We also look forward to completing the first phase of the expansion at our Nanjing facility and will share further updates with the market in due course.”

About CBAK Energy
CBAK Energy Technology, Inc. (NASDAQ: CBAT) is a leading high-tech enterprise in China focused on the development, manufacturing, and sales of new energy high power lithium batteries and raw materials used in their production. The Company’s products and solutions are used in electric vehicles, light electric vehicles, electric tools, energy storage, uninterruptible power supplies (UPS), and other high-power applications. CBAK Energy was the first lithium battery manufacturer in China to be listed on the Nasdaq Stock Market, in January 2006. CBAK Energy has several operating subsidiaries in Dalian, Nanjing and Shaoxing, and a large-scale R&D and production base in Dalian.

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